• Allowable Motor Speed: 60,000 rpm • Spindle Accuracy: Within 1 µm • Standard size collet (CHB-Ø3.175) (Ø1/8") • Weight: 12.35 oz. • NSK Catalog Number: 1836 Included Equipment: • Chuck Nut (K-265): 1 pc. • Collet Ø1/8" (CHB-[][]) • Wrench (6.1 x 8) Z103117: 2 pcs • Wrench (22 x 27) RA12045: 1 pc. Optional Equipment: • Collet Chuck (CHB-[][]): ø2.0, Ø3.0 mm, Ø1/8", ø4.0 mm.